Rubber tube hot melt adhesive machine with pressure maintaining mechanism

Abstract

The utility model discloses a rubber tube hot melt adhesive machine with a pressure maintaining mechanism, which relates to the field of hot melt adhesive machines and comprises a pressure maintaining type hot melt adhesive machine body, and a melt adhesive box body is arranged at the top of the pressure maintaining type hot melt adhesive machine body. By arranging the stirring assembly, when the adhesive tape is heated and melted, the driving motor can be turned on, so that the adhesive tape is stirred, the adhesive tape is uniformly heated, and the adhesive melting efficiency of the adhesive tape is improved; according to the size of the inner diameter of the glue melting box body, a connecting rod can slide in a supporting frame, so that a scraping plate is in contact with the inner wall of the glue melting box all the time, and when a driving motor is driven by a rotating shaft to rotate, the scraping plate scrapes off glue adhered to the inner wall of the glue melting box, so that subsequent cleaning of the adhered glue is facilitated, and the glue melting efficiency is improved. And the problem that the adhesion quality of the glue is reduced due to excessive heating of the adhered glue is also avoided, so that convenience is brought to the use of the pressure maintaining type hot melt glue machine.

Description

Technical Field

[0001] This utility model relates to the field of hot melt adhesive machines, and in particular to a hot melt adhesive machine for adhesive hoses with a pressure-holding mechanism. Background Technology

[0002] A pressure-holding hot melt adhesive machine is a bonding device that uses a heating element to heat the hot melt adhesive, melting the solid adhesive into a liquid state. It is widely used in household goods, the automotive industry, and the printing industry. The pressure-holding mechanism controls the applied adhesive pressure, and a metering pump controls the amount of adhesive dispensed. Based on different control methods, it can be divided into manual pressure-holding hot melt adhesive machines and automatic pressure-holding hot melt adhesive machines.

[0003] However, existing pressure-holding hot melt glue machines have poor melting effects during use. They are prone to sintering of glue strips due to uneven heating, which reduces the heating efficiency of the glue block. Furthermore, the molten glue tends to adhere to the inner wall of the heating chamber of the pressure-holding hot melt glue machine. This not only makes it difficult to clean the adhered glue later, but also easily reduces the bonding quality of the glue due to overheating of the adhered glue, causing inconvenience to the use of the pressure-holding hot melt glue machine.

[0004] Therefore, it is necessary to propose a hot melt glue machine for hoses with a pressure-holding mechanism to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a hot melt glue machine with a pressure-holding mechanism to solve the problems mentioned in the background art, such as poor glue melting effect, easy sintering of glue blocks due to uneven heating, which reduces the heating efficiency of glue blocks, and the fact that the melted glue easily adheres to the inner wall of the heating chamber of the pressure-holding hot melt glue machine, which is not convenient for subsequent cleaning of the adhered glue, and also easily reduces the glue bonding quality due to excessive heating of the adhered glue.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a hot melt glue machine for hoses with a pressure-holding mechanism, comprising a pressure-holding hot melt glue machine body, wherein a melting box is provided on the top of the pressure-holding hot melt glue machine body, a fixing bolt is internally threaded to the top of the melting box, and a sealing plate is inserted into the outside of the fixing bolt;

[0007] A stirring assembly is provided at the bottom of the sealing plate. The stirring assembly includes a rotating shaft, a drive motor is fixedly connected to the top of the rotating shaft, and a support frame is fixedly connected to the outside of the rotating shaft. An adjusting block is slidably connected inside the support frame, and grooves are provided at the top and bottom of the support frame. A limit block is slidably connected inside the groove, and the outside of the limit block is fixedly connected to the outside of the adjusting block. A spring is fixedly connected to one side of the adjusting block, and a connecting rod is fixedly connected to the other side of the adjusting block. A scraper is fixedly connected to one end of the connecting rod.

[0008] Preferably, the outside of the rotating shaft is rotatably connected to the inside of the sealing plate, and the bottom of the drive motor is fixedly connected to the top of the sealing plate.

[0009] Preferably, the end of the spring away from the adjusting block is fixedly connected to the inner side of the support frame, the scraper is arc-shaped, and the outer side of the scraper is in contact with the inner side of the melt box. Both sides of the scraper are provided with beveled surfaces.

[0010] Preferably, a leakage hole is provided at the bottom of the inner cavity of the melt glue box, and a filter screen is fixedly installed inside the leakage hole;

[0011] A connecting shaft is fixedly connected to the bottom end of the rotating shaft, and a connecting plate is fixedly connected to the outside of the connecting shaft. The bottom of the connecting plate is in contact with the top of the filter screen.

[0012] Preferably, a discharge pipe is fixedly connected to the bottom of the melt box, and a glue delivery pipe is fixedly installed at the bottom end of the discharge pipe.

[0013] Preferably, a resistance heating tube is fixedly connected inside the melting box, and a feeding plate is hinged to the top of the sealing plate.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. By setting up a stirring component, when heating and melting the adhesive strip, the drive motor can be turned on. The drive motor will rotate the support frame and connecting rod through the rotating shaft, thereby stirring the adhesive strip and making the adhesive strip heat evenly, which facilitates the melting operation and improves the melting efficiency of the adhesive strip. When the stirring component is placed in the melting tank, the connecting rod will slide inside the support frame according to the inner diameter of the melting tank, so that the scraper is always in contact with the inner wall of the melting tank. When the drive motor rotates through the rotating shaft, the rotating shaft will drive the scraper through the connecting rod to rotate, so that the scraper scrapes off the adhesive adhering to the inner wall of the melting tank. This facilitates the subsequent cleaning of the adhered adhesive and avoids the problem of reducing the adhesive bonding quality due to excessive heating of the adhered adhesive, thus bringing convenience to the use of the pressure-holding hot melt glue machine.

[0016] 2. Through the coordinated design of the connecting shaft and the connecting plate, when the drive motor drives the rotating shaft to rotate, the rotating shaft will drive the connecting plate to rotate through the connecting shaft, thereby rotating the unmelted glue strips filtered on the top of the filter screen. This prevents too many unmelted glue strips from accumulating on the top of the filter screen, causing filter screen blockage or slow glue dispensing, thus bringing convenience to the use of the pressure-holding hot melt glue machine. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the hot melt glue machine with pressure holding mechanism of the present invention.

[0018] Figure 2 This is a schematic diagram of the internal structure of the melt box in this utility model.

[0019] Figure 3 This is a cross-sectional view of the melt box in this utility model.

[0020] Figure 4 This is a schematic diagram of the stirring assembly in this utility model.

[0021] In the diagram: 1. Pressure-holding hot melt glue machine body; 2. Glue melting tank; 3. Sealing plate; 4. Fixing bolt; 5. Rotating shaft; 6. Drive motor; 7. Support frame; 8. Adjusting block; 9. Slide groove; 10. Limiting block; 11. Spring; 12. Connecting rod; 13. Scraper; 14. Connecting shaft; 15. Connecting plate; 16. Filter screen; 17. Discharge pipe; 18. Glue conveying pipe; 19. Feeding plate; 20. Resistance heating tube. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] This utility model provides, for example Figures 1-4The illustrated hot melt adhesive dispenser with a pressure-holding mechanism includes a pressure-holding hot melt adhesive dispenser body 1. A melting tank 2 is mounted on the top of the body 1. A fixing bolt 4 is threadedly connected to the top of the melting tank 2, and a sealing plate 3 is inserted into the outside of the fixing bolt 4. A discharge pipe 17 is fixedly connected to the bottom of the melting tank 2, and a glue delivery pipe 18 is fixedly installed at the bottom end of the discharge pipe 17. A resistance heating tube 20 is fixedly connected inside the melting tank 2, and a feeding plate 19 is hinged to the top of the sealing plate 3. The feeding plate 19 can be opened to facilitate the addition of adhesive strips inside the melting tank 2. The resistance heating tube 20 heats the adhesive strips inside the melting tank 2, and the glue delivery pipe 18 facilitates the discharge of the heated adhesive, completing the glue dispensing operation.

[0024] In addition, a stirring assembly is provided at the bottom of the sealing plate 3. The stirring assembly includes a rotating shaft 5. A drive motor 6 is fixedly connected to the top of the rotating shaft 5, and a support frame 7 is fixedly connected to the outside of the rotating shaft 5. An adjusting block 8 is slidably connected inside the support frame 7. Slide grooves 9 are provided at the top and bottom of the support frame 7. A limit block 10 is slidably connected inside the slide groove 9. The outside of the limit block 10 is fixedly connected to the outside of the adjusting block 8. A spring 11 is fixedly connected to one side of the adjusting block 8, and a connecting rod 12 is fixedly connected to the other side of the adjusting block 8. A scraper 13 is fixedly connected to one end of the connecting rod 12.

[0025] The rotating shaft 5 is rotatably connected to the inside of the sealing plate 3, the bottom of the drive motor 6 is fixedly connected to the top of the sealing plate 3, the end of the spring 11 away from the adjusting block 8 is fixedly connected to the inside of the support frame 7, the scraper 13 is arc-shaped, and the outer side of the scraper 13 contacts the inner side of the melting box 2. Both sides of the scraper 13 are provided with beveled surfaces. When the adhesive strip is added to the inside of the melting box 2, the drive motor 6 can be turned on. The drive motor 6 will drive the rotating shaft 5 to rotate, and the rotating shaft 5 will drive the connecting rod 12 to rotate through the support frame 7, thereby stirring the adhesive strip, making the adhesive strip heat evenly, facilitating the melting operation of the adhesive strip, and thus improving the melting efficiency of the adhesive strip.

[0026] Furthermore, when the mixing component is placed in the melting tank 2 for use, the connecting rod 12 can slide inside the support frame 7 under the extension and contraction of the spring 11, depending on the size of the inner diameter of the melting tank 2. This ensures that the scraper 13 is always in contact with the inner wall of the melting tank 2. When the drive motor 6 rotates through the rotating shaft 5, the rotating shaft 5 will drive the scraper 13 to rotate through the connecting rod 12. This allows the oblique surface of the scraper 13 to scrape off the glue adhering to the inner wall of the melting tank 2, facilitating subsequent cleaning of the adhering glue. It also avoids the problem of reducing the glue bonding quality due to excessive heating of the adhering glue, thus bringing convenience to the use of the pressure-holding hot melt glue machine.

[0027] Finally, a drain hole is provided at the bottom of the inner cavity of the melt glue tank 2. A filter screen 16 is fixedly installed inside the drain hole. A connecting shaft 14 is fixedly connected to the bottom end of the rotating shaft 5. A connecting plate 15 is fixedly connected to the outside of the connecting shaft 14. The bottom of the connecting plate 15 is in contact with the top of the filter screen 16. When the drive motor 6 drives the rotating shaft 5 to rotate, the rotating shaft 5 will drive the connecting plate 15 to rotate through the connecting shaft 14, thereby rotating the unmelted glue strips filtered on the top of the filter screen 16. This prevents too many unmelted glue strips from accumulating on the top of the filter screen 16, causing the filter screen 16 to become clogged or the glue to be dispensed slowly, thus bringing convenience to the use of the pressure-holding hot melt glue machine.

[0028] Working principle: First, the feeding plate 19 can be opened to facilitate the addition of adhesive strips into the melting tank 2. The resistance heating tube 20 is used to heat the adhesive strips inside the melting tank 2. Then, the drive motor 6 is turned on, which drives the rotating shaft 5 to rotate. The rotating shaft 5 drives the connecting rod 12 to rotate through the support frame 7, thereby stirring the adhesive strip and ensuring that the adhesive strip is heated evenly, which facilitates the melting operation and improves the melting efficiency of the adhesive strip. When the drive motor 6 rotates through the rotating shaft 5, the rotating shaft 5 drives the scraper 13 to rotate through the connecting rod 12, so that the oblique surface of the scraper 13 melts the adhesive strip. The adhesive adhering to the inner wall of the glue tank 2 is scraped off, which facilitates subsequent cleaning of the adhesive and avoids the problem of reduced adhesive bonding quality due to excessive heating of the adhesive. This brings convenience to the use of the pressure-holding hot melt glue machine. Finally, when the drive motor 6 drives the rotating shaft 5 to rotate, the rotating shaft 5 will drive the connecting plate 15 to rotate through the connecting shaft 14. This will rotate the unmelted glue strips filtered on the top of the filter screen 16, preventing too much unmelted glue strips from accumulating on the top of the filter screen 16, causing the filter screen 16 to become clogged or the glue to be dispensed slowly. This brings convenience to the use of the pressure-holding hot melt glue machine.

Claims

1. A hot melt adhesive applicator for hoses with a pressure-holding mechanism, comprising a pressure-holding hot melt adhesive applicator body (1), characterized in that: The pressure-holding hot melt glue machine body (1) is provided with a glue melting box (2) on the top. The top of the glue melting box (2) is connected with a fixing bolt (4) by an internal thread. A sealing plate (3) is inserted into the outside of the fixing bolt (4). The bottom of the sealing plate (3) is provided with a stirring assembly, which includes a rotating shaft (5). The top of the rotating shaft (5) is fixedly connected to a drive motor (6), and the outside of the rotating shaft (5) is fixedly connected to a support frame (7). The inside of the support frame (7) is slidably connected to an adjusting block (8), and the top and bottom of the support frame (7) are provided with sliding grooves (9). The inside of the sliding groove (9) is slidably connected to a limiting block (10). The outside of the limiting block (10) is fixedly connected to the outside of the adjusting block (8). One side of the adjusting block (8) is fixedly connected to a spring (11), and the other side of the adjusting block (8) is fixedly connected to a connecting rod (12). One end of the connecting rod (12) is fixedly connected to a scraper (13).

2. A hot melt adhesive applicator for hoses with a pressure-holding mechanism according to claim 1, characterized in that: The outside of the rotating shaft (5) is rotatably connected to the inside of the sealing plate (3), and the bottom of the drive motor (6) is fixedly connected to the top of the sealing plate (3).

3. A hot melt adhesive applicator for hoses with a pressure-holding mechanism according to claim 1, characterized in that: The end of the spring (11) away from the adjusting block (8) is fixedly connected to the inner side of the support frame (7). The scraper (13) is arc-shaped, and the outer side of the scraper (13) is in contact with the inner side of the melt box (2). Both sides of the scraper (13) are provided with beveled surfaces.

4. A hot melt adhesive applicator for hoses with a pressure-holding mechanism according to claim 1, characterized in that: The bottom of the inner cavity of the melt box (2) is provided with a leakage hole, and a filter screen (16) is fixedly installed inside the leakage hole; The bottom end of the rotating shaft (5) is fixedly connected to a connecting shaft (14), and the outside of the connecting shaft (14) is fixedly connected to a connecting plate (15). The bottom of the connecting plate (15) is in contact with the top of the filter screen (16).

5. A hot melt adhesive applicator for hoses with a pressure-holding mechanism according to claim 1, characterized in that: The bottom of the melt box (2) is fixedly connected to a discharge pipe (17), and a glue delivery pipe (18) is fixedly installed at the bottom end of the discharge pipe (17).

6. A hot melt adhesive applicator for hoses with a pressure-holding mechanism according to claim 1, characterized in that: The inside of the melt box (2) is fixedly connected to a resistance heating tube (20), and the top of the sealing plate (3) is hinged to a feeding plate (19).

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